Danfoss ET4400, Operator'S Manual

Page: 52 / 84

Maintenance item
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Hydraulic system
Hydraulic energy lines – hoses: Check for porosity
and leaks.
X
Hydraulic energy lines - bolted connections of hoses
and pipes: Check for leaks.
X
Hydraulic oil: Check oil level, add oil if required (see
“Replacing hydraulic oil” in Section 6).
X
Hydraulic oil: Replace 1
Hydraulic hoses: Have replaced (DIN 20066) no later
than six years after manufacture (see label).
Make sure that replacement hoses are of equivalent
quality (high-pressure hoses).
6
Crimping tool
Crimping tool: Check for damage and wear. X
Retaining bolt: Check for damage. X
Slide bearing plates: Check for wear (see
“Checking and replacing slide bearing plates” in Sec-
tion 6).
X
Pressure springs between base dies: Check for da-
mage.
X
Check all bolted connections for secure fitting and
retighten if necessary.
1
Safety equipment
Emergency-stop button/Emergency stop device:
Check function
X
Fixed guards and covers: Check for completeness
and correct installation.
X
For machines with foot switch, only
Check case foot switch for completeness. The case
protects the pedals against unintentional activation.
X
Warning signs on the machine: Check legibility (see
"Warning signs on the machine" in Section 2).
X